public static ValidationErrors Value(object target)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
// Self validation should be tried first; then the validator should be created
ISelfValidation sv = target.Adapt <ISelfValidation>();
if (sv != null)
{
return(sv.Validate());
}
Validator v = Validator.CreateSelfValidator(target.GetType());
if (v != null)
{
return(v.Validate(target));
}
v = Validator.Create(target.GetType());
if (v != null)
{
return(v.Validate(target));
}
throw ValidationFailure.ValidationNotDefined();
}
public static Validator Create(KnownValidator knownValidator)
{
switch (knownValidator)
{
case KnownValidator.Required:
return(new RequiredValidator());
case KnownValidator.Length:
return(new LengthValidator());
case KnownValidator.Range:
return(new RangeValidator());
case KnownValidator.PropertyComparison:
return(new PropertyComparisonValidator());
case KnownValidator.Email:
return(new EmailValidator());
case KnownValidator.Regex:
return(new RegexValidator());
case KnownValidator.Negative:
return(new NegativeValidator());
case KnownValidator.NonNegative:
return(new NonPositiveValidator());
case KnownValidator.Positive:
return(new PositiveValidator());
case KnownValidator.NonPositive:
return(new NonPositiveValidator());
case KnownValidator.NonZero:
return(new NonZeroValidator());
case KnownValidator.Self:
throw ValidationFailure.CannotCreateKnownValidatorThisWay("knownValidator");
case KnownValidator.Unknown:
throw new ArgumentOutOfRangeException("knownValidator", knownValidator, SR.CannotBeUnknownValidator()); // $NON-NLS-1
default:
throw Failure.NotDefinedEnum("knownValidator", knownValidator); // $NON-NLS-1
}
}
public static IEnumerable GetDictionaryKeys(object target)
{
var type = target.GetType();
var iface = type.GetInterface("System.Collections.Generic.IDictionary`2");
if (iface == null)
{
throw ValidationFailure.DictionaryTypeRequired();
}
var map = type.GetInterfaceMap(iface);
for (int i = 0; i < map.InterfaceMethods.Length; i++)
{
if (map.InterfaceMethods[i].Name == "get_Keys")
{
return((IEnumerable)map.TargetMethods[i].Invoke(target, null));
}
}
return(null);
}
